12. Cows digest proteins into smaller molecules called peptides through the use of an enzyme called pepsin.
Aqueous solutions taken from the contents of a cow's stomach are found to have many more hydrogen ions
(H+) than hydroxide ions (OH-). A veterinarian is attempting to conduct an experiment that mimics protein
digestion and has the following four test tubes set up. Which would you expect to have the greatest
concentration of peptides?
(A) Test tube 1: protein and pepsin in water at pH 1.4
(B) Test tube 2: protein and pepsin in water at pH 8.2
(C) Test tube 3: protein in water at pH 7.6
(D) Test tube 4: pepsin in water at pH 1.7

Answers

Answer 1
The correct answer would be answer choice A!!!! The reasoning for this is that free H+ ions in a solution DECREASE the pH or in other words make the solution more acidic. So because of that we know that our solution must have a lower pH so we know the correct answer is either A or D because these are acidic solutions. In order for pepsin to catalyze the reaction there must be protein present and because of this we can eliminate answer choice D. So answer choice A is correct.

Related Questions

1. (-4, 6) and (3,-7)

Answers

Answer:

60

Explanation:

70-10=60

For the respiration in yeast cells lab with the bottles and balloons what would be a suitable conclusion for the lab?

Answers

Answer:

[tex]4(x + 3) = 6(x + 1)[/tex]

Particles that become planets

Answers

Explanation:

The planets in our Solar System are believed to have formed from the same spinning disc of dust that formed the Sun. This disc, called the solar nebula, was composed mainly of hydrogen and helium, but also had other elements in smaller proportions.


What do all of the indicators you have used have in common?

Answers

Weak acids and bases are indicators. All indicators are weak acids. An acid-base conjugate pair has different colors. Any indicator changes color when the pH of its solution is 7.

Answer:

Weak acids and bases are indicators. All indicators are weak acids. An acid-base conjugate pair has different colors. Any indicator changes color when the pH of its solution is 7.

Explanation:

What was the name of the orbiting telescope that helped explore space by taking images like this one? THIS IS SICENCE

Answers

Answer:

Hubble Space Telescope

Hubble Space Telescope is the name of the orbiting telescope that helped explore space by taking images like this one. Therefore, option (4) is correct.

The Hubble Space Telescope takes photographs like these. Famous astronomy observatory named for Edwin Hubble, launched in 1990. It provides vivid, detailed photographs of celestial objects by orbiting Earth beyond the atmosphere.

Its powerful equipment have revealed faraway galaxies, nebulae, stars, and planets, revolutionising our view of the cosmos. Cosmology advances have revealed the universe's age and expansion pace. Hubble's magnificent images have increased our understanding and sparked public enthusiasm in space exploration and research. Therefore, option (4) is correct.

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Your question is incomplete but your full question was:

What was the name of the orbiting telescope that helped explore space by taking images like this one?

(1 point)

Galileo Space TelescopeApollo Space TelescopeInternational Space TelescopeHubble Space Telescope

hellppppppppppppppppp​

Answers

6 seconds - 1 second = 5 seconds for (1 breath)
60/5 = 12 (breaths per minute)

What do scientists hypothesize about production of free oxygen

Answers

Oxygen in the form of the oxygen molecule (O2), produced by plants and vital for animals, is abundant in Earth's atmosphere and oceans. ... But at some point, Earth underwent what scientists call the Great Oxidation Event or GOE for short, as ocean microbes evolved to produce O2 via photosynthesis.

______ , _______ , _______, and ________ are four macromolecules that are important to life.

Answers=
carbohydrates
nucleic acids
lipids (fats and oils)
hydrogen
proteins
oxygen

Answers

carbohydrates lipids proteins and nucleic acids

cytology deals with the study of_____​

Answers

Answer:

Cytology is the study of individual cells of the body.

Answer:

cytology deals with the study of Individual cells of the body.

name each of the following
I will give brainliest​

Answers

Answer:

a. Arota

b. pulmonary trunk

c. left atrium

d. mitral (bicuspid) valve

e. left ventricle

f. interventricular septum

g. right ventricle

h. inferior Vena Cava

j. right atrium

k. aortic valve

Explanation:

hope it may help you

Compare and contrast a provirus and viral DNA.

A provirus is viral DNA incorporated into the host cell’s DNA.

A provirus is newly replicated viral DNA after injection.

A provirus is the host cell’s DNA that has been destroyed.

A provirus is bacterial DNA incorporated into the viral DNA.

Answers

The main difference between 'provirus' and 'viral DNA' is that provirus is viral DNA incorporated into the host cell’s DNA (Option 1)

A provirus can be defined as the genetic material (DNA) of a particular virus which is integrated into the genome of an individual.

Since a provirus is already integrated into the host's genome, this sequence can be transmitted from one generation to the next by cell division (either mitosis and meiosis depending on the cell type).

For example, the human immunodeficiency virus (HIV) is a retrovirus whose genome is integrated into the host genome (e.g., into host CD4 cells), thereby making it a provirus.

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Answer:

A

Explanation:

The maintenance of constant internal conditions in an organism is know as

Answers

Bonjour!

This is known as homeostasis.

Homeostasis - is when organisms maintain a constant internal environment while their external environment is changing.

Au revoir!

Pls help me answer thank you

Answers

Answer:

b is the correct answer

Explanation:

hope it helps u..

List the major organs of the central nervous system ninr tynes of nerves? only major ​

Answers

Answer:

brainspinal cordsensory organs

#Make this answer as brainliest answer

Honors Biology help

please study the graph. Which statement below best describes what is happening with this photosynthetic organism (an organism that does photosynthesis) at hour 12?

Answers

Answer:

D. it is nightime

Explanation:

Everything slows down. Wich infers no light energy.

I will give brainliest
Calculate the percentage change in mass of the onions that were on the most concentrated solution of sodium chloride
Show your working ​

Answers

Answer:

-5.3

Explanation:

................

What are the four pillars the hold the foundation of Biology?

Answers

Answer:

homeostasis

reproduction

genecits

evolution.


An interaction between two organisms in which
one usually benefits is known as

Answers

Answer:

Symbiosis is a relationship between two organisms: it can be mutualistic (both benefit), commensal (one benefits), or parasitic

which of the following options provides evidence of how algal blooms harm ocean ecosystems

Answers

Answer:

Harmful algal blooms cause thick, green muck that impacts clear water, recreation, businesses and property values

Explanation:

hope it may help you

please help me thankyou​

Answers

The answer is in the picture attached.

Answer:

................................

In which order career related jobs are arranged​

Answers

Answer:

                In chronological order.

3. The
is a unit of the Department of Health and Human Services. It is
responsible for monitoring safety and security risks and health hazards in the
United States and abroad.
A. National Institute of Occupational Safety and Health (NIOSH)
B. Centers for Disease Control and Prevention (CDC)
C. Occupational Safety & Health Administration (OSHA)
D. Occupational Safety & Health Act


Answers

Sugman younpio gun jam is

The flow of blood is ______________
A. Directly related to the pressure gradient but inversely related to the resistance
B. Inversely related to both the pressure gradient and the resistance
C. Inversely related to the pressure gradient but directly related to the resistance.
D. Directly related to both the pressure gradient and the resistance.

Answers

Answer:

I would say C because it is related to the resistance

A DNA segment is changed from AATTAG to AAATAG. What type of mutation is this and what is its effect on the genetic variation of a population?

A.
The mutation is a substitution which causes a decrease in the genetic variation of a population.

B.
The mutation is an insertion which causes a decrease in the genetic variation of a population.

C.
The mutation is an insertion which causes an increase in the genetic variation of a population.

D.
The mutation is a substitution which causes an increase in genetic variation of a population.

Answers

The mutation from AATTAG to AAATAG is a substitution which causes an increase in genetic variation of a population.

MUTATION:

Mutation refers to any change in the nucleotide sequence of DNA molecule. Mutation can be of different types depending on how it occurs.

A substitution mutation is that in which one or more nucleotide base is replaced by another in the sequence.

In this question, an original sequence of DNA is given as AATTAG. It was mutated to AAATAG via the replacement of 'T' with 'A'. This means that it is a substitution mutation.

However, this mutation will cause an increase in the genetic variation i.e. difference in a population.

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what does an observation use

Answers

Answer:

Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments. The term may also refer to any data collected during the scientific activity

why erector muscles contract in regularing body temperature at cold temperature ?​

Answers

Answer:

Erector muscles contract in regularing body temperature at cold temperature because  causing body hairs to stand on end.

Have a nice day!!

Seema left a slice of bread in her tiffin box after a few day she saw greenish white growth on it

A. What kind of organisms must have grown

B. How do such organisms obtain nutrition



C. What is the mode of nutrition know as​

Answers

Answer:

a what kind of organisms must have grown

Explanation:

Enzymes and substrate fit together at the active site to form a lock and key mechansim. This means


a) if they don't fit, it is the wrong substrate or the enzyme is denatured.

b) substrates work on enzymes, allowing them be be denatured.

c) the shape and size of the enzymes does not matter.

d) enzymes are not specific and work on a variety of substrates.

Answers

Answer:

the answer is option b hope you understand

The lock and key mechanism of enzyme and substrate means that if they don't fit, it is the wrong substrate or the enzyme is denatured.

WHAT IS AN ENZYME?

An enzyme is a protein substance that regulates biochemical activities in living cells by acting as a catalyst.

Enzymes act on substrates but they do not get changed during the process. This means that enzymes can be used over and over again.

Enzymes are substrate-specific i.e. they act on specific substrates. The lock and key model explains the mechanism of action of enzymes. Enzymes attach to substrate at their active sites and act on them to form products.

The lock and key model explains that if enzyme and substrate don't fit, it is either the wrong substrate or the enzyme is denatured.

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A stapler is used to staple 100 papers,it jams 5 times during the trial.A different brand of stapler performs the same test,it jams 22 times?

Answers

Answer:

Dang that sucks

Consider an experiment in which subjects are given a pill to test its effectiveness in reducing the duration of a cold. Which of the following is the best way to treat the control group.
A. Give the control group two pills instead of one.
B. Do nothing with the control group.
C. Give the control group a pill that looks like the test pill but does nothing

Answers

Answer:

c.

Explanation:

(comment if you need an explenation and I'll give it)

Give the control group a pill that looks like the test pill but does nothing is the best way to treat the control group. Option C is correct.

The best way to treat the control group in this experiment is option C: give the control group a placebo pill that looks like the test pill but does not contain any active ingredients. Here's why:

Ensuring Validity: A control group is used to establish a baseline for comparison. By giving the control group a placebo pill that looks identical to the test pill, researchers ensure that both groups experience the same psychological and physical conditions except for the presence of the active ingredient. This helps eliminate potential bias and confounding variables that could affect the results.

Blinding: Giving the control group a placebo maintains blinding, where participants do not know whether they are receiving the active treatment or the placebo. This prevents participants' expectations or beliefs from influencing the outcomes, enhancing the experiment's validity.

Placebo Effect: The placebo pill accounts for the placebo effect, a psychological phenomenon where participants experience improvements in their condition due to their belief in the treatment's effectiveness. By giving the control group a placebo, researchers can assess whether the test pill's effects are genuinely due to the active ingredient or influenced by participants' perceptions.

Ethical Considerations: It's important to provide some form of treatment to the control group to ensure they are not harmed or misled. Giving them a placebo pill with no therapeutic effect is an ethical way to include them in the study while minimizing potential risks.

Overall, using a placebo that mimics the appearance of the test pill ensures a controlled and rigorous experiment, where the effects of the active ingredient can be accurately evaluated. This approach maintains scientific integrity, valid comparisons, and ethical considerations.

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